History Ireland Tit-for-tat: the War of Independence in the northern counties open_in_new article, 2012
National Archives UKLetter from Lloyd George inviting Craig and de Valera to a conference open_in_new document, 24 June 1921
Bicycles, Barracks & BandoliersMemo regarding Catholic recruitment in the RUC and USC memo, March 1922
Decade of Centenaries timelinePeace vigil: groups of women and youths saying the rosary photograph, 1921
Warwick Digital CollectionsPeace with Ireland: Labour’s Proposals for a Settlement by Consent leaflet, 26 January 1921
Hathi Trust Digital LibraryThe struggle of the Irish people. Address to the Congress of the United States book, January 1921
Decade of Centenaries timelineBallytrain RIC barracks captured and sacked by the IRA. photograph, 1920